WordNet sense 1 (a golf shot that curves to the right for a right-handed golfer):

slice, slicing

WordNet sense 2 (lose freshness, vigor, or vitality):

wither

WordNet sense 3 (disappear gradually):

fleet, pass, evanesce, pass off, blow over

WordNet sense 4 (gradually ceasing to be visible):

disappearance

WordNet sense 5 (become less clearly visible or distinguishable; disappear gradually or seemingly):

melt

WordNet sense 6 (become feeble):

languish